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E F FRENCH & M O JEFFERS Sound Deadening Attachment for Railway Cars.No. 234,265. Patented Nov. 9,1880.. Fig.1.

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UNITED STATES EVELYN F. FRENCH AND MILTON O. JE-FFERS,

PATENT OFFICE.

OF NEW YORK, N. Y.

SPECIFICATION forming part of Letters Patent No. 234,265, dated November9, 1880. Application filed September 25, 1879.

To all whom it may concern.-

Be it known that we, EVELYN F. FRENCH and MILTON CLIFFORD JEEEERs, bothof the city, county, and State of New York, have invented certain newand useful improvements in means, and the mode of applying the same, fordeadening or reducing sound in railwaystructures caused by movingcarriages thereon; and we do'hereby declare that the followin gspecification, taken in connection with the drawings furnished andforming a part thereof, is a full, clear, and exact description thereof,sufficient to enable others skilled in the art to practice the same.

Our invention consists in the method of deadening sound, diminishingfriction, and preventing wear on railways, consisting in applying leadto the surface of the rails at the points of contact with the wheels orin advance of the same.

The invention further consists in certain devices employed for thatpurpose, and hereinafter more particularly set forth and claimed.

To enable others to more fully understand and practice our saidinvention, we will describe the same in detail.

Referring to the drawings, Figure 1 represents a portion of the frame ofa car with section cut away above the wheel, showing a pocket, withinwhich a ball of lead is located, resting and operating upon said wheelby its own gravity, and a vertically-arranged projection, within whichis a traversing wheel or small roller. Fig. 2 is the same as Fig.1without the small wheel or roller.

A represents a portion of the frame of the truck of a railway-car; B,the flange which supports thd box or thejournal of the axle and wheel.

0 represents the wheel, of the usual form; 1), a ball of lead restingupon and revolved by the motion of the wheel.

E represents a pocket or opening, within I which the ball is heldsecured F represents a vertically-arranged bracket, supporting a smallleaden roller or wheel, G, resting upon the track and rotated by theforward movement of the car.

H represents the rail, and H fish-bar or a wooden tic.

The leaden wheel G and the leaden ball D operate to check the vibrationsand deaden the sound of the wheels on the rails. This is their chieffunction. Their attrition on the rail and wheel, of course, transmitssome small portion of their material to the surfaces in contact, andthereby tends to lessen friction and prevent wear. As these devices maybe applied to all the runningwheels ofa train, theircollectiveefi'ectupon the rail-surface will be considerable, and the application of thelead will, of course, be repeated with the passage of every train ofcars on a road where these improvements have been adopted.

The wheel G and ball D take the place of long strips of materialextending under or within the rails, such as have heretofore been used;but for further deadening effect we may obviously employ such stripsalso, and it is often convenient to arrange them against the sides ofthe rails.

What we claim is 1. A leaden Wheel carried by a car and rotating againstthe top of the rail, substantially as set forth.

2. A leaden ball carried by a car and resting on the-top of a car-wheel,substantially as set forth.

EVELYN F. FRENCH. MILTON CLIFFORD JEFFERS.

Witnesses JOHN DANE, Jr., J OSEPH M. CRANE.

